Hi Michael,
As humans we tend to think in terms of “before” and “after”, but to God everything is in the present.
When we say that, before Jesus died on the cross, the deceased were “waiting” to be delivered, we are speaking humanly, which does not mean incorrrectly. But to God, these people, if they had lived correctly, were not in any kind of “transitional” salvation. They were with God and enjoying Him face to face. When we read the story of Lazarus and the “bosom of Abraham”, we get no inkling that things were otherwise.
They were, of course, saved in anticipation of the merits of Jesus Christ, just like Our Lady was free from original sin in the same way.
Verbum